A SnelStart administration is connected to Zenvoices as an accounting package. Go to Manage / Environment / Accounting package integrations and click 'Connect new accounting package' to connect a new SnelStart administration.
Consult this page for more information for accountants and entrepreneurs about the required SnelStart subscription to connect with Zenvoices. Contact SnelStart if the SnelStart subscription needs to be changed in order to work with Zenvoices.